Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Water-quality characteristics, trends, and nutrient and sediment loads of streams in the Treyburn development area, North Carolina, 1988–2009 Water-quality characteristics, trends, and nutrient and sediment loads of streams in the Treyburn development area, North Carolina, 1988–2009
Streamflow and water-quality data, including concentrations of nutrients, metals, and pesticides, were collected from October 1988 through September 2009 at six sites in the Treyburn development study area. A review of water-quality data for streams in and near a 5,400-acre planned, mixed-use development in the Falls Lake watershed in the upper Neuse River Basin of North Carolina...
Authors
Jason M. Fine, Douglas A. Harned, Carolyn J. Oblinger
Water-quality conditions, and constituent loads and yields in the Cambridge drinking-water source area, Massachusetts, water years 2005–07 Water-quality conditions, and constituent loads and yields in the Cambridge drinking-water source area, Massachusetts, water years 2005–07
The source water area for the drinking-water supply of the city of Cambridge, Massachusetts, encompasses major transportation corridors, as well as large areas of light industrial, commercial, and residential land use. Because of ongoing development in the drinking-water source area, the Cambridge water supply has the potential to be affected by a wide variety of contaminants. The U.S...
Authors
Kirk P. Smith
Water-quality data collected to determine the presence, source, and concentration of lead in the drinking water supply at Pipe Spring National Monument, northern Arizona Water-quality data collected to determine the presence, source, and concentration of lead in the drinking water supply at Pipe Spring National Monument, northern Arizona
Pipe Spring National Monument in northern Arizona contains historically significant springs. The groundwater source of these springs is the same aquifer that presently is an important source of drinking water for the Pipe Spring National Monument facilities, the Kaibab Paiute Tribe, and the community of Moccasin. The Kaibab Paiute Tribe monitored lead concentrations from 2004 to 2009...
Authors
Jamie P. Macy, David Sharrow, Joel Unema
Water-quality data of lakes and wetlands in the Yukon Flats, Alaska, 2007–2009 Water-quality data of lakes and wetlands in the Yukon Flats, Alaska, 2007–2009
Over a three-year period (2007–2009), in-situ measurements were taken and water-quality samples were collected from 111 lakes and wetlands located in the Yukon Flats, Alaska, during a U.S. Fish and Wildlife Service wetlands inventory. The U.S. Geological Survey performed the chemical analyses on the retrieved water-quality samples. Results from the analyses of water samples for dissolved...
Authors
Douglas R. Halm, Nikki Guldager
Water-quality, bed-sediment, and biological data (October 2010 through September 2011) and statistical summaries of data for streams in the Clark Fork basin, Montana Water-quality, bed-sediment, and biological data (October 2010 through September 2011) and statistical summaries of data for streams in the Clark Fork basin, Montana
Water, bed sediment, and biota were sampled in streams from Butte to near Missoula, Montana, as part of a monitoring program in the upper Clark Fork basin of western Montana; additional water samples were collected from near Galen to near Missoula at select sites as part of a supplemental sampling program. The sampling program was conducted by the U.S. Geological Survey in cooperation...
Authors
Kent A. Dodge, Michelle I. Hornberger, Jessica Dyke
Web-based flood database for Colorado, water years 1867 through 2011 Web-based flood database for Colorado, water years 1867 through 2011
In order to provide a centralized repository of flood information for the State of Colorado, the U.S. Geological Survey, in cooperation with the Colorado Department of Transportation, created a Web-based geodatabase for flood information from water years 1867 through 2011 and data for paleofloods occurring in the past 5,000 to 10,000 years. The geodatabase was created using the...
Authors
Michael S. Kohn, Robert D. Jarrett, Gary S. Krammes, Amanullah Mommandi
What is the economic value of satellite imagery? What is the economic value of satellite imagery?
Does remote-sensing information, such as that from Landsat and similar Earth-observing satellites, provide economic benefits to society, and can this value be estimated? Using satellite data for northeastern Iowa, U.S. Geological Survey scientists modeled the relations among land uses, agricultural production, and dynamic nitrate (NO3-) contamination of aquifers. They demonstrated that...
Authors
Ronald P. Raunikar, William M. Forney, Susan P. Benjamin
Whole rock geochemistry and grain-size analyses from sediment and rock near Tuba City Open Dump, Tuba City, Arizona Whole rock geochemistry and grain-size analyses from sediment and rock near Tuba City Open Dump, Tuba City, Arizona
This report releases new information on grain-size distribution and whole rock geochemistry from samples collected in 2008 in and around Tuba City Open Dump, Tuba City, Arizona.
Authors
Raymond H. Johnson, Valerie K. Stucker, Robert Horton, James K. Otton
WICCI Wildlife Working Group Report WICCI Wildlife Working Group Report
Wisconsin is world-renowned for its diversity of ecological landscapes and wildlife populations. The northern forests, southern prairies, and interior and coastal wetlands of the state are home to more than 500 terrestrial animal species. These animals supply the Wisconsin public with aesthetic, cultural, and economic benefits; our identity and economy are intertwined with these natural
Authors
Olivia E. LeDee, Suzanne Hagell, K. Martin, David McFarland, Michael Meyer, Andy Paulios, Christine A. Ribic, D. Sample, Timothy R. Van Deelen
Wildfire and invasive species in the west: challenges that hinder current and future management and protection of the sagebrush-steppe ecosystem: a Gap Report Wildfire and invasive species in the west: challenges that hinder current and future management and protection of the sagebrush-steppe ecosystem: a Gap Report
The Western Association of Fish and Wildlife Agencies (WAFWA) to satisfy the 45-day report requirement identified in Cooperative Agreement (F13AC00353) between WAFWA and the U. S. Fish and Wildlife Service (FWS) submit this “Gap Report”. This report summarizes the policy, fiscal and science challenges that land managers encounter related to the control and reduction of the invasive plant...
Authors
Kenneth F. Mayer, Pete Anderson, Jeanne Chambers, Chad Boyd, Tom Christiansen, Dawn Davis, Shawn Espinosa, Doug Havlina, Michael Ielmini, Don Kemner, Laurie Kurth, Jeremy Maestas, Brian Mealor, Ted Milesneck, Lara Niell, Mike Pellant, David A. Pyke, Joe Tague, Jason Vernon
Wildlife disease and environmental health in Alaska Wildlife disease and environmental health in Alaska
Environmental health is defined by connections between the physical environment, ecological health, and human health. Current research within the U.S. Geological Survey (USGS) recognizes the importance of this integrated research philosophy, which includes study of disease and pollutants as they pertain to wildlife and humans. Due to its key geographic location and significant wildlife...
Authors
Caroline R. Van Hemert, John M. Pearce, Karen Oakley, Mary E. Whalen
Wind River watershed restoration. Annual report. November 2011 through October 2012 Wind River watershed restoration. Annual report. November 2011 through October 2012
Authors
Ian G. Jezorek, Patrick J. Connolly